SA204 Grade B STEEL PLATE

ASME SA204 Grade B steel plate ownd a higher yield strength above 275Mpa and tensile strength at 485-620 Mpa when supplying.In specification standard ASME SA204/SA204M,there are steel materials SA204 Grade A steel plate,SA204 Grade B steel plate and SA204 Grade C steel plate.These three grades are equivalent in chemical composition but different in yield strength and tensile strength.

Technical Requirements & Additional Services for SA204 Grade B steel plate:
♦  High tension test
♦  Low temperature impacting test
♦  Normalised for thick plates over 40mm
♦  Simulated post-welded heat treatment (PWHT)
♦  Rolling under standard NACE MR-0175 (HIC+SSCC)
♦  Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦  Shot blasting and Painting,Cutting and welding as per end user’s demands

 ►Mechnical property for SA204GrB alloy steel plate:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
275	485-620	200mm	50mm
		17	21

 
►Chemical composition for SA204 Grade B alloy steel plate (Heat Analysis Max%)

Main chemical elements composition of A204 Grade B
Thickness(mm)	C	Si	Mn	P	S	Mo
T≤25	0.20	0.15-0.40	0.90	0.035	0.035	0.45-0.60
25<T≤50	0.23
50<T≤100	0.25
T>100	0.27